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Utility model Rotary hydraulic cylinder of CNC Lathe for prevention of leakage 14.12.1999 Industrial property office
patent Hydraulic distributor of rotary cylinder for lathe 30.08.2006 Industrial property office
patent Centrifugal force compensation power chuck of lathe 22.09.2006 Industrial property office
patent Draw down type Centrifugal force compensation structure of lathe chuck 13.11.2006 Industrial property office
patent Centrifugal force compensation instrument weight’s separation prevention structure 13.11.2006 Industrial property office
patent Lathe’s cutting oil filter instrument 16.11.2006 Industrial property office
patent Lathe’s cutting oil filter instrument 12.12.2006 Industrial property office
patent Labyrinth seal structure by forming air hole 26.12.2007 Industrial property office
patent Structure of removal case of cutting oil, which prevent hydraulic cylinder from inflowing oil 14.04.2008 Industrial property office